Sources say the “intimate dinner” at Barkin’s West 12th Street home was for guests including Clooney’s mother and sister, and Alamuddin’s mom. A source said there were also “a few men” at the coed fête. Clooney and Alamuddin’s nuptials will reportedly take place in September in Italy.

Page Six reported they’re eyeing a palace in Venice that would allow maximum privacy, and that Clooney wants to tie the knot a year after he and Alamuddin met. Barkin and Clooney starred in “Ocean’s Thirteen” together, and the actress made headlines when she joked at a 2006 event honoring Clooney while the blockbuster was filming: “I am the only actress willing to stand here and say, ‘I have f—ed George Clooney’ … I’m very proud of it … If you don’t have chemistry with George Clooney, you need to check your pulse.”

Clooney clarified by later telling Esquire of any romance between the two, “Never . . . she’s a great friend.” Otherwise, the bridal shower might’ve been a little awkward.